138837960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{385661}}^1$

素因数の和:385678

約数の個数: 48

約数和(自身を含む): 451224540

約数和(自身を除く): 312386580

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 385661, 771322, 1156983, 1542644, 1928305, 2313966, 3085288, 3470949, 3856610, 4627932, 5784915, 6941898, 7713220, 9255864, 11569830, 13883796, 15426440, 17354745, 23139660, 27767592, 34709490, 46279320, 69418980, 138837960]

約数ペア:

[(1, 138837960), (2, 69418980), (3, 46279320), (4, 34709490), (5, 27767592), (6, 23139660), (8, 17354745), (9, 15426440), (10, 13883796), (12, 11569830), (15, 9255864), (18, 7713220), (20, 6941898), (24, 5784915), (30, 4627932), (36, 3856610), (40, 3470949), (45, 3085288), (60, 2313966), (72, 1928305), (90, 1542644), (120, 1156983), (180, 771322), (360, 385661)]